Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, Washington, USA.
Kois Center, Seattle, Washington, USA.
J Prosthodont. 2023 Dec;32(S2):150-164. doi: 10.1111/jopr.13749. Epub 2023 Sep 8.
To report the means to maximize the predictability and accuracy of intraoral digital implant scans through the evaluation of operator and patient-related factors.
A search of published articles related to factors that can decrease the scanning accuracy of intraoral digital implant scans was completed in four data sources:MEDLINE, EMBASE, EBSCO, and Web of Science. All studies related to variables that can influence the accuracy of intraoral digital implant scans obtained by using intraoral scanners (IOSs) were considered. These variables included ambient lighting, scanning pattern, implant scan body (ISB) design, techniques for splinting ISBs, arch location, implant position, and inter-implant distance.
Among operator-related factors, ambient lighting conditions, scanning pattern, and ISB design (material, geometry, and retention design) can impact the accuracy of intraoral digital implant scans. The optimal ISB for maximizing IOS accuracy is unclear; however, polymer ISB can wear with multiple reuse and sterilization methods. Among patient-related factors, additional variables should be considered, namely arch (maxillary vs. mandibular arch), implant position in the arch, inter-implant distance, implant depth, and angulation.
Ambient lighting conditions should be established based on the IOS selected to optimize the accuracy of intraoral digital implant scans. The optimal scanning pattern may vary based on the IOS, clinical situation, and the number of implants. The optimal ISB design may vary depending on the IOS used. Metallic implant scan bodies are preferred over polymer ISB designs to minimize wear due to multiple use and sterilization distortion. Among patient-related factors, additional variables should be considered namely the arch scanned, implant position in the arch, inter-implant distance, implant depth, and angulation. The impact of these factors may vary depending on the IOS selected.
通过评估操作人员和患者相关因素，报告最大限度提高口腔内数字种植体扫描可预测性和准确性的方法。
在 MEDLINE、EMBASE、EBSCO 和 Web of Science 这四个数据源中，检索了与可能降低口腔内数字种植体扫描扫描精度的因素相关的已发表文章。所有与使用口腔内扫描仪（IOS）获得的口腔内数字种植体扫描的准确性相关的变量的研究均被认为是相关的。这些变量包括环境照明、扫描模式、种植体扫描体（ISB）设计、ISB 固定技术、弓位置、种植体位置和种植体间距离。
在操作人员相关因素中，环境照明条件、扫描模式和 ISB 设计（材料、几何形状和保留设计）会影响口腔内数字种植体扫描的准确性。用于最大程度提高 IOS 准确性的最佳 ISB 尚不清楚；然而，聚合物 ISB 可能会因多次重复使用和消毒方法而磨损。在患者相关因素中，还应考虑其他变量，即弓（上颌弓与下颌弓）、弓内的种植体位置、种植体间距离、种植体深度和角度。
应根据所选 IOS 确定环境照明条件，以优化口腔内数字种植体扫描的准确性。最佳扫描模式可能因 IOS、临床情况和种植体数量而异。最佳 ISB 设计可能因使用的 IOS 而异。为了最大程度地减少因多次使用和消毒而导致的磨损，金属种植体扫描体优于聚合物 ISB 设计。在患者相关因素中，还应考虑其他变量，即扫描的弓、弓内的种植体位置、种植体间距离、种植体深度和角度。这些因素的影响可能因所选 IOS 而异。
